Edwin campbell



l la

' UNITED STATES PATENT OFFICE.

EDWIN CAMPBELL, OF BATH, MAINE, ASSIGNOR TO WM. HEATH, OF ASAME PLACE.

'ED GE-KEY.

T c all whomfit 'may concerm' Be it known that I, EDWIN CAMPBELL, ofBath, in the county of Sagadahoc and State of Maine, have invented anImproved Edge- Key, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, makingpart of this specification, in which- FigureIk l. is a view of myimproved edge key. Figi. 2. a section through the same.

The object of my present invention is to make an edge key for finishingand smoothing the .edge of boot and shoe soles, .which may be readilyadjusted by the operator to suit soles of any thickness, and may alsocombine in one tool a variety of 4patterns, and my invention consists informing the key of a metal block adjustable in a shank or holder as Iwill now proceed to describe in such a manner that others skilled in theart may understand and use my invention.

In the said drawings A is a handleof wood, to the lower end of which isattached a metal shank B having a hole Z) formed in it of a proper sizeto receive the block C; this block which is four sided and of asuflicient length to give the required adjustment, has an overlappingedge or lip at a and has its faces l, 2, 3, and 4L of a contour suitedto givethe required shape to the edgeof the sole (for example groovesmay be formed across the face of the block as at c which will make ribson the edge of the sole).

The block C is held in position after being adjusted in the shank Binthe Jfollowing manner: A small metal block Z which slides in a recessin the shank B, is pressed against the block C by a rod e extendinglengthwise screwrod and block cl may be in one). vend of the shank Bbelow the block C is through the handle, which rod is itself forced downby a thumb screw f working in a cap g on the end of the handle (or theThe beveled off at It where it rests on the bottom of the sole of theboot, when the key is being used, (that is being rubbed back and forthwith one of the faces of the block C against the edge of the sole).

When the key is to be used for a sole of a different thickness it isonly necessary to loosen the screw f and slide the block C through thehole b until the distance from -the edge or lip a and the shank B at Lsuits the thickness of the sole, when the screw f is again tightened up.As either face of the block AC may be turned toward the end L of theshank B or the block turned end for end, a great variety of patterns maybe obtained with one tool as the grooves c on each face may be ofdifferent sizes and forms and at different distances from the edges a.

`The face of the shank B at z' is made straight or any bevel differentfrom that at fz, may be given to it, to suit the bevel required on theedge of the sole.

That I claim as my invention and desire to secure by Letters Patent asan improved article of manufacture, is

A boot and shoe edge key, in which the parts are constructed andcombined to operate in relation to each other as shown and described.

EDWIN CAMPBELL.

lVitnesses D. F. BAKER. GEO. W. TUCKER.

